class Support::Training::Pathwright::CategoriesController < Support::Training::Controller
  include CacheHelper

  def index
    data = load_cache('pathwright/categories') do
      categories.includes(:courses).map { |c| category_props(c) }.to_json
    end
    render_success :ok, json: data
  end

  def show
    render_success :ok, json: category_props(category)
  end

  def create
    category = categories.build(category_params)
    if category.save
      render_success :ok, json: category_props(category)
    else
      render_error :unprocessable_entity, errors: category
    end
  end

  def update
    if category.update(category_params)
      render_success :ok, json: category_props(category)
    else
      render_error :unprocessable_entity, errors: category
    end
  end

  def destroy
    if category.destroy
      render_success :ok
    else
      render_error :unprocessable_entity, errors: category
    end
  end

  private
    def categories
      Pathwright::Category.all
    end

    def category
      @category ||= categories.find_by(id: params[:id])
    end

    def category_params
      params.permit(:name)
    end

    def category_props(category)
      {}.tap do |prop|
        prop[:id] = category.id
        prop[:name] = category.name
        prop[:count] = category.courses.count
      end
    end
end